1. Endocrine, Metabolic and Bariatric Unit, Vall D’Hebron University Hospital, Universitat Autònoma de Barcelona, Center of Excellence for the EAC-BC, Barcelona, Spain
2. Research Institute against Digestive Cancer, Strasbourg, France
3. Department of Medicine, Federal University of Rondônia -Unir, Brazil
4. Division of General Surgery, Hospital de Base of Porto Velho, Brazil
5. Endocrinolgy and Nutrition Department, Vall d’Hebron University Hospital, Universitat Autònoma de Barcelona, Center of Excellence for the EAC-BC, Barcelona, Spain
6. General Surgery Department, Vall Dd’Hebron University Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain